Cone plate rotary type high-viscosity non-Newtonian fluid viscometer and viscosity detection method

Abstract

The invention discloses a cone plate rotary type high-viscosity non-Newtonian fluid viscometer and a viscosity detection method. The cone plate rotary type high-viscosity non-Newtonian fluid viscometer comprises a support, a rotary table and a stator are fixed to the support, the stator is located above the rotary table, the rotary table is used for containing non-Newtonian fluid, the viscometer further comprises an elastic hollow cylinder, and the top of the elastic hollow cylinder is connected with the support; and the bottom of the elastic hollow cylinder is connected with the stator, a torque measuring grating is installed on the elastic hollow cylinder and connected with an optical fiber, the optical fiber is coupled with an FBGA demodulation module through a coupler, and the FBGA demodulation module is connected with an upper computer. A temperature sensor is arranged on the stator working surface, and a rotating speed sensor is arranged on the rotary table; and the temperature sensor and the rotating speed sensor are connected with the controller.

Description

technical field [0001] The invention discloses a cone-plate rotary high-viscosity non-Newtonian fluid viscometer and a viscosity detection method. Background technique [0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] Non-Newtonian fluids widely exist in the fields of chemical industry, food and biomedicine, such as blood, aviation engine fuel, edible oil, flour and so on. Therefore, it is particularly important to detect the viscosity of non-Newtonian fluids. At present, the mainstream detection methods for the viscosity of non-Newtonian fluids include rotation method, capillary degree method, falling ball vibration method, etc. Among them, the rotation method is the most commonly used because of its easy to use, accurate measurement and high reproducibility. [0004] The principle of the rotary non-Newtonian fluid viscometer is that when the relative motion occurs be...

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Problems solved by technology

The structure of the traditional rotary method is mostly cylindrical, and the main reasons that affect the measurement accuracy of the cylindrical non-Newtonian fluid viscometer are as follows: shear heat, the rotating fluid rotates continuously on the surface of the measuring object to generate heat, and the heat and Viscosity has a great relationship, which affects the measurement accuracy; edge effect, the additional viscous moment generated between the fluid and the contact object is called the edge effect, especially in non-Newtonian fluids, the edge effect has a greater impact on the measurement accuracy; and the detection range is ubiquitous Problems with small, excessive amounts of fluid reagents

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